Stoptech Aero Brake Rotor Drilled Brake Rotor Pair | 2015 BMW M3/M4 (81.B38.9921) Stoptech

Aero Brake Rotor Drilled Brake Rotor Pair by Stoptech

StopTech® AeroRotor® Replacement Kits (ARK) are designed to replace your vehicle’s original factory rotors, while retaining the factory brake calipers. Although the ARK is the same diameter and thickness as the factory rotors, it offers improved cooling, braking, and handling.

Features

• Driving Style: Performance / Racing
• Rotor Construction: 2-Piece
• Rotor Style: Drilled
• Rotor Material: Cast Iron
• Rotor Finish: Bare
• Rotor Type: Vented
• Rotor Diameter: 380mm (14.96″)
• Rotor Height: 62.5mm (2.461″)
• Nominal Thickness: 30mm (1.18″)
• Minimum Thickness: 28.4mm (1.118″)
• Lug Holes Quantity: 5
• Lug Holes Size: 16.6mm (0.654″)
• Bolt Circle: 120mm (4.724″)
• Quantity: 2 Per Pack

Benefits

• Specifically engineered and patented AeroVanes for optimum cooling
• Patented, billet 7075 aluminum AeroHats for improved airflow
• Full-floating mounting hardware to eliminate pad knock-back
• Optimized to provide even performance and consistent feedback
• Hard-anodized hats are impervious to color change or fading
• Stainless steel studs secured with set screws for strength and durability
• Fully machined aluminum or steel that is precise and strong
• Application specific design for precise and proper fitment
• All necessary hardware for easy installation
• Patented design with directional stand offs between the rotor and mounting bell
• Increases airflow by 50%-100% over traditional 2-piece designs
• Increased airflow reduces the temperature difference between the inside and outside rotor faces
• Results in less distortion and better performance compared to other fully floating designs
• Outer pad wear is reduced
• Proudly made in the USA

Applications

• 2015 BMW M3/M4

What’s In The Box?

• 1 – Aero Brake Rotor Drilled Brake Rotor Pair

Warranty

• Manufacturers Standard Warranty